Toilet odor expeller



Sept. 6, 1938. G. H. DAVIS TOILET ODOR EXPELLER Filed Sept. 15, 1937 Patented Sept. 6, 1938 UNITED STATES PATENT orrlcr:

Claims.

This invention is a unitary appliance for ready attachment to and for expelling odors from toilet bowls and is an improvement in closet ventilators such as shown in U. S. Patent No. 1,498,789,

l issued to Brouillard, June 24, 1924.

"An object of the invention is to increase the ehausting capacity and speed of the device in expelling air from the bowl. I A further object is to provide for keeping the unit ina clean and 1 0 sanitary condition by features designed to prevent, as far as practical, the accretion of objectionable fluids in or about the structural parts. Another object is to provide for the protection and concealment of circuit cords which connect a seat controlled switch and a fan driving motor included in a suitable housing of the assembly.

Particularly, an object is to provide a suction chamber having a wide, flat, arcuate mouth portion designed to lie under and close to the forward edge of the rear portion of the bowl seat and have a width considerably greater than the spacing between' the almost universally adopted spacing of the bolts of the bowl seat and its cover and thus present a large air intake to the suction chamber. And an object is to provide a simple,.compact, durable and low cost odor expeller, easily attachable to the conventional toilets without mechanical change.

The invention consists of certain advancements in this art as set forth in the ensuing disclosure and has, with the above. other objects and advantages hereinafter developed, and whose construction, combination and details of means will be made manifest in the description of the annexed illustrative embodiment; it being understood that modifications, variations and adaptations may be resorted to within the concept of the invention as it is more directly claimed hereinbelow.

Figure 1 is a top plan, partly broken away, of the appliance. Figure 2 is a mouth-side elevation," partly in section, of the device, and Figure 3 is a transverse section on line 3 3, Fig. 1. Figure 4 is a detail section of an equalizing, spring button as mounted in a portion of the chamber, on line 4--4, Fig. 1. Figure 5 is sectional detail of the controlling switch mounting and its actuating button, on line 5 5, Fig. 1. Figures 6 and 7 are front elevations showing diiferent forms of swivel couplings for the motor assembly and the suction chamber.

The appliance includes three main shell sections comprising a fiat suction chamber 2 having a joint extension 3 at one end, a suction fan housing 4 coupled at 5 to the extension 3, and a (ci. ifm) motor-enclosing casing 6 having a sidal partition I closing the near open side of the Ian housing to exclude moist air from the motor parts and serving to radiate heat from the motor to the cool air dispelled by the ian wheel 8 which is 5 driven by the motor.

The extension 3 is tubular and leads into the suction space formed by an upper or top wall 2 and a lower or bottom wall 2" of the chamber 2; which is of an oblong shape and its ends and back are closed by a perimital web 2n while the frontal edges are incurved to substantially conform to the average contour oi' the rear rim portion of the conventional toilet bowl B, and provide a very wide but shallow inlet mouth M. The 15 chamber 2 is provided with bolt holes 9 adjacent to its rear side which are so spaced as to receive the usual bolts I0 of the toilet which support the hinge II of the bowl seat S and the usual cover C.

The b olt holes are well within the ends of the chamber 2 and are isolated from the mouth space by bosses I2 through which the holes extend. This construction provides for the ready attachment of the appliance to the bowl B and provides for a very elongate suction mouth M for the elcient and rapid induction of air from the bowl.

The forward 'corners of the chamber 2 are provided with push buttons I3 and I4 each pressed, in about equal reaction, by suitable springs I5 concealed in respective pockets I3 and I4'1 in the chamber corners which latter have top holes I6 through which the buttons are pushed up to a limit determined by their shoulders Il. The pockets are closed by removable bottom plates I3b.

The button I3 has a conical cam-face I8 operative against the near end of yieldable plunger I9 oi an appropriate switch device 20 sealed in the pocket I3. From the switch 20 extends an electric cord 2I which is arranged as far back in the chamber space as is practical and is passed rear of 4a retaining lug 22 and the boss I2 near the outlet extension 3 through which the cord 2i is then laid in a radial duct 22' in the fan housing 4 whence it passes in a wall duct 23 to the motor casing 6, thence out at 24 to a service connection.

The frontal edge E of the top wall 2 of the chamber 2 forwardly overhangs the front edge of the lower wall 2" for the purpose of shedding water from the bottom wall so that this may be kept as dry as practical.

The springs I5 press the buttons upward with sufficient reaction to sustain the lowered seat S and the superposed cover C so that their weight will not be sufficient to press down the switch operating button I3 and thus push back the switch plunger I9. But as a suitable excess weight is applied to the lowered seat S the two buttons I3 and I4 will be repressed and button I3 will repress the plunger I9 and the motor circuit will be closed and the motor energized, and suction is at once started to exhaust air from the bowl for the period that the seat is pressed down. Upon release of pressure on the seat S the buttons |3-l4 will spring upward and the switch plunger I9 breaks the motor circuit. The spring supported buttons offer equal or balanced resistance to downward movement of the seat S and the cover C.

Fig. 6 shows a modified form of swivel coupling 5' for adapting the motor end of the expeller to different toilet tank installation, and Fig. '7 shows a further variation of coupling 5".

To the plate I3b is attached a guide 13 on which the button I3 is slidably guided, and spring I5 is nested in the button and in the guide.

What is claimed is:

1. A toilet bowl odor expeller having a suction chamber with a frontal mouth for air intake from a bowl, an exhaust conduit leading from the chamber, a motor and fan housing attached to said conduit, a switch concealed in the chamber and seat cushions in said chamber engageable and actuated by the lowered bowl seat, means connected to one of said cushions to actuate the switch, an electric cord connected to said switch and concealed in said chamber and passing through the conduit to the motor housing, and

means for retaining the cord in a rearward, protected position in said chamber.

2. In a device of the class set forth, a suction chamber of rlat form presenting a wide, frontal mouth between its top and bottom walls, said chamber having pockets in its i'orward corners, a motor switch sealed in one of said pockets, cushions in said pockets for the toilet seat, and means on one of said cushions for closing the switch.

3. An odor expeller including a nat suction chamber for installation between a bowl rim and its lowered seat and having seat-bolt holes between its ends for the seat bolts, the chamber having a frontal, arcuate mouth, and yieldable, equi-resistant seat engagingbuttons mounted in the forward corners of the chamber at the ends of the mouth, and a motor controlling switch device engageable and operative by one of said buttons.

4. An odor expeller for attachment to a toilet bowl and including a generally oblong,` fiat chamber seat cushioning means mounted in said chamber, and a motor controlling switch operatively engaged by said--means when the seat is depressed thereon.

5. An odor expeller including a chamber having a suction mouth and provided with closed pockets in its forward corners -at the ends of the mouth, and seat engaging buttons yieldably mounted in said pockets, and a motor switch device sealed in one of the pockets and operatively engaged by the relative button when the bowl seat is pressed down to close the switch.

GASP H. DAVIS. 

